The father and brother of a billionaire art dealer who was locked up for running a celebrity-studded gambling ring from his Trump Tower condo will face jail time, too — if a Palm Beach socialite gets her way.

She wants a Manhattan judge to toss the Nahmads behind bars for up to 30 days — just a year after their family member Helly Nahmad served five months in prison for taking sports bets from stars like Leonardo DiCaprio and Alex Rodriguez.

Helly Nahmad is the older brother of Joe. David Namad is their father. Like Helly, both are art dealers.

David NahmadGetty Images

Disabatino says in court papers that David and Joe Nahmad failed to show up for court-ordered depositions this year and have refused to answer questions about their deals with Bouin.

Bouin, a New York- and Paris-based multimillionaire art dealer, filed for divorce from Disabatino in 2014.

The socialite wants to grill the Nahmads about art they bought from her husband, including works by Henri Matisse and Claude Monet.

“This is relevant, material and necessary information that is essential to [Disabatino] learning what the marital assets are so that she can seek fair distribution,” she says in court papers.Helly Nahmad pleaded guilty of participating in a high stakes gambling ring.David McGlynn

“Time is of the essence in this matter as trial dates are scheduled for early November,” the suit says.

But Aaron Richard Golub, attorney for the Nahmads, calls the prison threats “nothing more than sanctionable harassment.”

“There’s no need for them to take David Nahmad or Joe Nahmad’s depositions,” Golub said.

“They’re just harassing my clients,” he said.

“This woman is aggressively pursuing every one of her husband’s friends and business associates.”

Last month, Disabatino sued Manhattan real-estate maven Janna Bullock claiming she was helping Bouin hide a trove of artwork by Matisse and Pablo Picasso. The case is pending.

Disabatino is also demanding nearly $10,000 in legal fees from the Nahmads, who are worth an estimated $3 billion.